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Guile L, Lee A, Gutiérrez JM. Factors associated with mortality after snakebite envenoming in children: a scoping review. Trans R Soc Trop Med Hyg 2023; 117:617-627. [PMID: 37264929 PMCID: PMC10472879 DOI: 10.1093/trstmh/trad031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/17/2023] [Accepted: 05/12/2023] [Indexed: 06/03/2023] Open
Abstract
Snakebite envenoming is an important public health issue in many tropical and subtropical countries, where the burden of morbidity and mortality falls particularly on impoverished rural communities. Children are an especially vulnerable group. This scoping review provides an overview of the extent, type and content of peer-reviewed evidence regarding factors associated with mortality in snakebite-envenomed children. A comprehensive literature search of MEDLINE and the Global Index Medicus yielded 623 articles, of which 15 met the criteria for inclusion; 67% of studies were conducted in India, with the remaining studies taking place in Papua New Guinea, Morocco and The Gambia. There was a notable scarcity of eligible studies from sub-Saharan Africa and Latin America despite the high burden of envenoming in these regions. The risk factors for mortality that were identified by the greatest number of studies were younger patient age (n=4), delay in administration of antivenom (n=4) and acute kidney injury (n=3). Identification of poor prognostic factors can assist clinicians in making timely referrals to centres with paediatric critical care capability. Future research must address the lack of studies from key geographical regions so that evidence-based improvements to the care of this vulnerable group can be implemented.
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Affiliation(s)
- Lucy Guile
- Peninsula Medical School, University of Plymouth, Plymouth PL6 8BU, UK
- Department of Anaesthesia, University Hospitals Plymouth NHS Trust, Plymouth PL6 8DH, UK
| | - Adrienne Lee
- Peninsula Medical School, University of Plymouth, Plymouth PL6 8BU, UK
- Department of Anaesthesia, University Hospitals Plymouth NHS Trust, Plymouth PL6 8DH, UK
| | - José María Gutiérrez
- Instituto Clodomiro Picado, School of Microbiology, University of Costa Rica, San José 11501, Costa Rica
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2
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Pattanaik B, Mahapatra C, Karthika IK, Satapathy AK, John J, Das RR, Dwibedi B, Mahapatro S, Gulla KM. Clinical, laboratory profile and outcomes in children with snakebite from Eastern India. J Family Med Prim Care 2023; 12:1588-1592. [PMID: 37767426 PMCID: PMC10521854 DOI: 10.4103/jfmpc.jfmpc_1965_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 04/03/2023] [Accepted: 04/17/2023] [Indexed: 09/29/2023] Open
Abstract
Background Snakebite remains a significant public health problem worldwide, particularly in rural areas with unexpected morbidity and mortality. This study evaluated the clinical, laboratory profile and outcomes in children with snake bites from Eastern India. Methods This was a retrospective case record-based study between January 2017 and December 2021. The clinical features, complications, laboratory profiles and outcomes were analysed. Results Thirty children with snake bites were admitted during this study period. There was a male predominance with a ratio of 2.3:1. The mean age of presentation was 10.4 years. About 60% of bites occurred during the rainy season between July and September. Most bites (96%) were on lower limbs, predominantly showing vasculotoxic features followed by neurotoxic and a combined presentation. In this study, around 53% received anti-snake venom (ASV) before reaching our centre; the median time to reach our centre was 13 h. Complications such as acute kidney injury (AKI), cellulitis, shock and coagulation abnormalities were common in those who arrived early (before 6 h) than in those who reached late (after 6 h). Similarly, the mean duration of hospital stay was less for those seeking medical attention early as compared to those reaching late for treatment (4.7 days vs. 7.2 days). Twenty-six out of 30 (86.7%) were discharged without any sequelae, 3 (10%) children were left against medical advice and one died. Conclusions Snakebite remains a major health problem in children causing significant morbidity and mortality. Children, in general, especially males, are particularly vulnerable because of their playful and explorative nature and considerable time spent in outdoor activities. Preventive measures, education about avoiding traditional first aid methods and early administration of ASV reduce complications, duration of hospital stay and avoid the use of antibiotics.
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Affiliation(s)
- Biswajit Pattanaik
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Chinmaya Mahapatra
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - IK Karthika
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Amit K. Satapathy
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Joseph John
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Rashmi R. Das
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Bhagirathi Dwibedi
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Samarendra Mahapatro
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Krishna M. Gulla
- Departments of Paediatrics, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
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3
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Gross I, Maree A, Rekhtman D, Mujahed W, Hashavya S, Assaf J. Clinical Characteristics and Management of Snake Bite Injuries in the Jerusalem Area. J Clin Med 2023; 12:4132. [PMID: 37373825 DOI: 10.3390/jcm12124132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Venomous snake bites can constitute medical emergencies, and without immediate care may be life-threatening. This study describes the characteristics and management of patients suffering from snake bite injuries (SNIs) in the Jerusalem area. A retrospective analysis of all patients who were admitted to the Hadassah Medical Center emergency departments (EDs) due to SNIs between 1 January 2004 and 31 March 2018 was conducted. During this period, 104 patients were diagnosed with SNIs, of whom 32 (30.7%) were children. Overall, 74 (71.1%) patients were treated with antivenom, 43 (41.3%) were admitted to intensive care units, and 9 (8.6%) required treatment with vasopressors. No mortality was recorded. On ED admission, none of the adult patients presented with an altered mental state compared to 15.6% of the children (p < 0.00001). Cardiovascular symptoms were observed in 18.8% and 5.5% of the children and adults, respectively. Fang marks appeared in all of the children. These findings underscore the severity of SNIs and the differences in clinical presentation between children and adults in the Jerusalem region.
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Affiliation(s)
- Itai Gross
- Department of Pediatric Emergency Medicine, Hadassah Medical Center, Jerusalem 91120, Israel
| | - Aus Maree
- Department of Pediatrics, Hadassah Medical Center, Jerusalem 91120, Israel
| | - David Rekhtman
- Department of Pediatric Emergency Medicine, Hadassah Medical Center, Jerusalem 91120, Israel
| | - Waseem Mujahed
- Department of Emergency Medicine, Hadassah Medical Center, Jerusalem 91120, Israel
| | - Saar Hashavya
- Department of Pediatric Emergency Medicine, Hadassah Medical Center, Jerusalem 91120, Israel
| | - Jacob Assaf
- Department of Emergency Medicine, Hadassah Medical Center, Jerusalem 91120, Israel
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4
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Warrell DA, Williams DJ. Clinical aspects of snakebite envenoming and its treatment in low-resource settings. Lancet 2023; 401:1382-1398. [PMID: 36931290 DOI: 10.1016/s0140-6736(23)00002-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/26/2022] [Accepted: 12/18/2022] [Indexed: 03/16/2023]
Abstract
There is increasing recognition of the public health importance of snakebite envenoming. Worldwide annual incidence is likely to be 5 million bites, with mortality exceeding 150 000 deaths, and the resulting physical and psychological morbidity leads to substantial social and economic repercussions. Prevention through community education by trained health workers is the most effective and economically viable strategy for reducing risk of bites and envenoming. Clinical challenges to effective treatment are most substantial in rural areas of low-resource settings, where snakebites are most common. Classic skills of history taking, physical examination, and use of affordable point-of-care tests should be followed by monitoring of evolving local and systemic envenoming. Despite the profusion of new ideas for interventions, hyperimmune equine or ovine plasma-derived antivenoms remain the only specific treatment for snakebite envenoming. The enormous interspecies and intraspecies complexity and diversity of snake venoms, revealed by modern venomics, demands a radical redesign of many current antivenoms.
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Affiliation(s)
- David A Warrell
- Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK; Experimental Medicine Division, John Radcliffe Hospital, Headington, UK.
| | - David J Williams
- Regulation and Prequalification Department, World Health Organization, Geneva, Switzerland
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5
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Tadros A, Sharon M, Davis S, Quedado K, Marple E. Emergency Department Visits by Pediatric Patients for Snakebites. Pediatr Emerg Care 2022; 38:279-282. [PMID: 35507370 DOI: 10.1097/pec.0000000000002725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Few studies have examined pediatric emergency department (ED) visits for snakebites. This study sought to examine characteristics of pediatric patients presenting to EDs nationally in the United States for snakebites. METHODS This retrospective cohort study obtained data from the Nationwide Emergency Department Sample for 2006 to 2014. Pediatric patients sustaining a snakebite were identified with International Classification of Diseases, Ninth Revision, E-codes E905.0 or E906.2. Data extracted included age, sex, insurance, disposition, hospital trauma designation, ED charges, and geographic region. Comparative analyses were performed for patients younger than 10 years and aged 10 to 17 years. RESULTS There were 24,388 ED visits from 2006 to 2014 by pediatric patients for snakebites: 10,554 were younger than 10 years, and 13,834 were aged 10 to 17 years. Males comprised 62% and 67% of the respective age cohorts. Most patients (younger than 10 years, 68%; aged 10-17 years, 63%) experienced snakebites in the South. Only 14% of those younger than 10 years and 10% of those aged 10 to 17 years were treated at a level 1 trauma center, whereas 50% and 54%, respectively, were treated at hospitals with no trauma designation. The majority of patients were discharged from the ED (younger than 10 years, 72%; aged 10-17 years, 80%). The mean ED charges for snakebite victims younger than 10 years were $5363 and for those aged 10 to 17 years were $4618. Medicaid was the primary insurer of younger patients, whereas private insurance was more common in older patients. CONCLUSIONS Most pediatric snakebites are seen in nontrauma centers and in the South region and are more commonly male. Most patients were discharged from the ED, with a small percentage being admitted or transferred to another facility.
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Affiliation(s)
| | | | - Stephen Davis
- Health Policy, Leadership, and Management, West Virginia University School of Public Health, Morgantown, WV
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Chiang LC, Chaou CH, Li YY, Seak CJ, Yu SR, Lin CC. Management and Prognosis of Snake Envenomation Among Pediatric Patients: A National Database Study. J Acute Med 2022; 12:13-22. [PMID: 35619724 PMCID: PMC9096508 DOI: 10.6705/j.jacme.202203_12(1).0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 02/22/2021] [Accepted: 05/21/2021] [Indexed: 06/15/2023]
Abstract
BACKGROUND Snakebites constitute a common medical emergency in tropical and subtropical regions. Pediatric snake envenomation is a special category that has not been well studied. This study investigated the management and prognostic factors of snake envenomation in children using a Taiwanese national database. METHODS This observational study used the National Health Insurance database of all pediatric snake envenomation patients treated from 2005 to 2009. Patients' demographic data, antivenom types and doses, medical and surgical interventions, and prognostic variables were collected. Comparisons were made according to the envenomation types, age groups, and whether the patients were hospitalized using univariate and multivariate methods. RESULTS A total of 106 patients' data were collected. Of the patients, 73 (68.9%) were male, 62 (58.5%) were under the age of 12, 69 (65.1%) received intravenous (IV) antibiotic treatment, 38 (35.9%) were hospitalized, 5 (4.72%) required surgical intervention, and none died. Compared with non-hospitalized patients, the patients who required hospitalization were more likely to have suffered hemorrhagic envenomation ( p = 0.035), receive IV antibiotic treatment ( p = 0.0078), and require surgical intervention ( p = 0.005). In the multivariate analysis, hemorrhagic envenomation was an independent predictor for hospitalization (odds ratio: 3.47, 95% confidence interval: 1.18-10.21) after adjusting for other covariates. No significant differences were observed between age groups in total antivenom usage ( p = 0.2880), IV antibiotic usage ( p = 0.3190), hospitalization ( p = 0.3988), and surgical intervention ( p = 0.1874). CONCLUSIONS In this Taiwanese population-based national database study, antivenom treatment of pediatric snakebite patients resulted in zero mortality and a low surgical intervention rate. Patients with hemorrhagic envenomation were associated with a higher probability of hospitalization.
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Affiliation(s)
- Lin-Chi Chiang
- Chang Gung Memorial Hospital Department of Emergency Medicine Linkou, Taoyuan Taiwan
- Chang Gung University College of Medicine Taoyuan Taiwan
| | - Chung-Hsien Chaou
- Chang Gung Memorial Hospital Department of Emergency Medicine Linkou, Taoyuan Taiwan
- Chang Gung University College of Medicine Taoyuan Taiwan
- Chang Gung Memorial Hospital Chang Gung Medical Education Research Centre Taoyuan Taiwan
| | - Yi-Yun Li
- Chang Gung Memorial Hospital Department of Emergency Medicine Linkou, Taoyuan Taiwan
- Chang Gung University College of Medicine Taoyuan Taiwan
| | - Chen-June Seak
- Chang Gung Memorial Hospital Department of Emergency Medicine Linkou, Taoyuan Taiwan
- Chang Gung University College of Medicine Taoyuan Taiwan
- New Taipei Municipal Tucheng Hospital Department of Emergency Medicine New Taipei City Taiwan
| | - Shiuan-Ruey Yu
- Chang Gung Memorial Hospital Chang Gung Medical Education Research Centre Taoyuan Taiwan
| | - Chih-Chuan Lin
- Chang Gung Memorial Hospital Department of Emergency Medicine Linkou, Taoyuan Taiwan
- Chang Gung University College of Medicine Taoyuan Taiwan
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Sarkar S, Sinha R, Chaudhury AR, Maduwage K, Abeyagunawardena A, Bose N, Pradhan S, Bresolin NL, Garcia BA, McCulloch M. Snake bite associated with acute kidney injury. Pediatr Nephrol 2021; 36:3829-3840. [PMID: 33559706 DOI: 10.1007/s00467-020-04911-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/30/2020] [Accepted: 12/23/2020] [Indexed: 01/03/2023]
Abstract
Acute kidney injury (AKI) is a well-known life-threatening systemic effect of snake envenomation which commonly happens secondary to snake bites from families of Viperidae and Elapidae. Enzymatic toxins in snake venom result in injuries to all kidney cell types including glomerular, tubulo-interstitial and kidney vasculature. Pathogenesis of kidney injury due to snake envenomation includes ischaemia secondary to decreased kidney blood flow caused by systemic bleeding and vascular leakage, proteolytic degradation of the glomerular basement membrane by snake venom metalloproteinases (SVMPs), deposition of microthrombi in the kidney microvasculature (thrombotic microangiopathy), direct cytotoxic action of venom, systemic myotoxicity (rhabdomyolysis) and accumulation of large amounts of myoglobin in kidney tubules. Clinical features of AKI include fatigue, loss of appetite, headache, nausea, vomiting, oliguria and anuria. Monitoring of blood pressure, fluid balance, serum creatinine, blood urea nitrogen and serum electrolytes is useful in managing AKI induced by snake envenomation. Early initiation of anti-snake venom and early diagnosis of AKI are always desirable. Biomarkers which will help in early prediction of AKI are being explored, and current studies suggest that urinary clusterin, urinary neutrophil gelatinase-associated lipocalin, and serum cystatin C may play an important clinical role in the future. Apart from fluid and electrolyte management, kidney support including early and prompt initiation of kidney replacement therapy when indicated forms the bedrock in managing snake bite-associated AKI. Long-term follow-up is important because of chances of progression towards CKD.
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Affiliation(s)
- Subhankar Sarkar
- Division of Pediatric Nephrology, Institute of Child Health, Kolkata, 11, Dr Biresh Guha Street, Kolkata, West Bengal, 700017, India
| | - Rajiv Sinha
- Division of Pediatric Nephrology, Institute of Child Health, Kolkata, 11, Dr Biresh Guha Street, Kolkata, West Bengal, 700017, India. .,Department of Pediatrics, Apollo Gleneagles Hospital, Kolkata, India.
| | | | - Kalana Maduwage
- Department of Biochemistry, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Asiri Abeyagunawardena
- Department of Pediatrics, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Niladri Bose
- Department of Pediatrics, Apollo Gleneagles Hospital, Kolkata, India
| | - Subal Pradhan
- Department of Pediatrics, Sardar Vallabhbai Patel Post Graduate Institute of Pediatrics (SVPPGIP), Cuttack, India
| | | | | | - Mignon McCulloch
- Pediatric Renal and Solid Organ Transplant Unit, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa
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Lingam TMC, Tan KY, Tan CH. Capillary leak syndrome induced by the venoms of Russell's Vipers (Daboia russelii and Daboia siamensis) from eight locales and neutralization of the differential toxicity by three snake antivenoms. Comp Biochem Physiol C Toxicol Pharmacol 2021; 250:109186. [PMID: 34508870 DOI: 10.1016/j.cbpc.2021.109186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
Snakebite envenomation caused by the Western and Eastern Russell's Vipers (Daboia russelii and Daboia siamensis) may potentially induce capillary leak syndrome (CLS), while the use of antivenom in treating this has not been well examined. This study investigated the CLS-inducing toxicity of Russell's Viper venoms from various sources and examined the neutralization activity of regionally available antivenoms, using a newly devised mouse model. D. russelii venoms demonstrated a more consistent vascular leakage activity (76,000-86,000 CLS unit of vascular leak index, a function of the diameter and intensity of Evans Blue dye extravasation into dermis) than D. siamensis venoms (33,000-88,000 CLS unit). Both species venoms increased hematocrits markedly (53-67%), indicating hemoconcentration. Regional antivenoms (DsMAV-Thailand, DsMAV-Taiwan, VPAV-India) preincubated with the venoms effectively neutralized the CLS effect to different extents. When the antivenoms were administered intravenously post-envenomation (challenge-rescue model), the neutralization was less effective, implying that CLS has a rapid onset that preceded the neutralizing activity of antivenom, and/or the antivenom has limited biodistribution to the venom's inoculation site. In conclusion, Russell's Viper venoms of both species from various locales induced CLS in mice. Antivenoms generally had limited efficacy in neutralizing the CLS effect. Innovative treatment for venom-induced CLS is needed.
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Affiliation(s)
- Thava Malar Changra Lingam
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kae Yi Tan
- Protein and Interactomics Laboratory, Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Choo Hock Tan
- Venom Research and Toxicology Laboratory, Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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9
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Melit RJ, Abraham SV, Radhakrishnan S, Palatty BU, Ajay A, Vimal KS, Das K, Kassyap CK. Retrospective review of case records of snakebite presenting to a single tertiary care centre over a 5-year period. THE NATIONAL MEDICAL JOURNAL OF INDIA 2021; 34:326-332. [PMID: 35818091 DOI: 10.25259/nmji_97_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Background Snakebite is a disease of the poor, and hospitals catering to these individuals are often resource-constrained. Lack of electronic medical records in these resource-limited settings makes the capture of data even harder. Methods Before establishing a snakebite registry in the region, we did a retrospective case record review of all snakebite victims (n=3229) over 5 years who presented to a single tertiary care centre, catering to one of the largest number of snakebite victims in the country. Results Of the 451 cases, 262 (58.1%) presented to the emergency department within 2 hours of the bite. In 170 instances, the snake was brought along and the species of the snake was recorded. Russell's viper was the most common (130; 76.5%). Blood products were used in 237 (52.5%) patients. Acute kidney injury occurred in 165 (36.6%) patients, of whom 37 (8.2%) required dialysis. The mean (SD) duration of hospital admission was 10.5 (7.4) days. There was a significant correlation between number of snakebites with rainfall and humidity. One hundred and seven cases (3.3%) of snakebite resulted in mortality. A majority of mortality records were not available (88%; 94/107), rendering us incapable of doing reliable mortality data correlations or interpretation. Conclusion Viperidae bites predominate in the region, with renal injury being the most common cause for morbidity. Region-specific, prospective snakebite mapping could be a cost-effective strategy that might help in vulnerability analysis of the region. A multi-centric region-specific snakebite registry encompassing not just the clinico-epidemiological characteristics of snakebite victims, but also the demographic data, the pre-hospital care and local remedial practices, geospatial distribution, anti-snake venom and blood product usage, will help in developing better healthcare strategies for snakebite victims in India.
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Affiliation(s)
- Ronald Jaison Melit
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
| | - Siju V Abraham
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
| | - Sreekala Radhakrishnan
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
| | - Babu Urumese Palatty
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
| | - A Ajay
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Mangalore, Karnataka, India
| | - Krishan S Vimal
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Mangalore, Karnataka, India
| | - Krishna Das
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
| | - C K Kassyap
- Department of Emergency Medicine, Jubilee Mission Medical College and Research Institute, Thrissur 686005, Kerala, India
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10
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Harjen HJ, Anfinsen KP, Hultman J, Moldal ER, Szlosek D, Murphy R, Friis H, Peterson S, Rørtveit R. Evaluation of Urinary Clusterin and Cystatin B as Biomarkers for Renal Injury in Dogs Envenomated by the European Adder (Vipera berus). Top Companion Anim Med 2021; 46:100586. [PMID: 34583053 DOI: 10.1016/j.tcam.2021.100586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 09/04/2021] [Accepted: 09/23/2021] [Indexed: 01/12/2023]
Abstract
Dogs are commonly bitten by the European adder (Vipera berus) but studies investigating the effects of envenomation are limited. Snakebite-related kidney injury is reported in dogs but diagnosis of acute kidney injury (AKI) might be limited by the insensitivity of routinely used renal function biomarkers. The aim of this study was to evaluate novel biomarkers of renal injury (urinary cystatin B and urinary clusterin) and biomarkers of renal function (serum creatinine and serum symmetric dimethylarginine), and urine protein to creatinine ratio in dogs envenomated by V. berus. Biomarkers were measured at presentation (T1), 12 hours (T2), 24 hours (T3), 36 hours (T4), and 14 days (T5) after snakebite and compared to a group of healthy control dogs. A secondary aim was to investigate the association between biomarker concentrations and severity of clinical signs of envenomation using a snakebite severity score (SSS). Urinary cystatin B concentrations were significantly higher at all timepoints in envenomated dogs compared to controls (P < .010), except for T5 (P = .222). Absolute urinary clusterin concentrations were not significantly different to controls at any timepoint. Compared to controls, serum creatinine and serum symmetric dimethylarginine concentrations were significantly lower in envenomated dogs at T1-T4 (P < .036) and T2-T4 (P < .036), respectively. Urine protein to creatinine ratio was higher in envenomated dogs compared to controls at T2 and T3. Urinary cystatin B concentrations at T1 were correlated with SSS (Spearman's ρ = 0.690, P < .001). The increased urinary cystatin B concentrations observed in dogs envenomated by V. berus in comparison to controls may indicate renal tubular injury in these patients.
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Affiliation(s)
- Hannah J Harjen
- Faculty of Veterinary Medicine, Department of Companion Animal Clinical Sciences, Norwegian University of Life Sciences, Oslo Norway.
| | - Kristin P Anfinsen
- Faculty of Veterinary Medicine, Department of Companion Animal Clinical Sciences, Norwegian University of Life Sciences, Oslo Norway
| | - Josefin Hultman
- Faculty of Veterinary Medicine, Department of Companion Animal Clinical Sciences, Norwegian University of Life Sciences, Oslo Norway
| | - Elena R Moldal
- Faculty of Veterinary Medicine, Department of Companion Animal Clinical Sciences, Norwegian University of Life Sciences, Oslo Norway
| | | | | | - Hanne Friis
- IDEXX Laboratories, Inc., Westbrook, ME, USA
| | | | - Runa Rørtveit
- Faculty of Veterinary Medicine, Department of Preclinical sciences and Pathology, Norwegian University of Life Sciences, Oslo Norway
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11
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Marano M, Pisani M, Zampini G, Pontrelli G, Roversi M. Acute Exposure to European Viper Bite in Children: Advocating for a Pediatric Approach. Toxins (Basel) 2021; 13:toxins13050330. [PMID: 34063282 PMCID: PMC8170888 DOI: 10.3390/toxins13050330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 04/29/2021] [Accepted: 04/30/2021] [Indexed: 11/16/2022] Open
Abstract
Viper bite is an uncommon but serious cause of envenoming in Europe, especially in children. Our study aim is to better describe and analyze the clinical course and treatment of viper bite envenoming in a pediatric population. We retrospectively reviewed 24 cases of pediatric viper bites that were admitted to the Pediatric Emergency Department and the Pediatric Intensive Care Unit of the Bambino Gesù Children Hospital in Rome between 2000 and 2020. Epidemiological characteristics of the children, localization of the bite, clinical and laboratory findings, and treatment approaches were evaluated. The median age of the patients was 4.2 years, with male predominance. Most cases of viper bite occurred in the late summer. Most patients required admission to the ward for prolonged observation. The most common presenting signs were pain, local oedema, and swelling. Patients with a high severity score also had a significantly higher white blood cell count and an increase of INR, LDH, and CRP levels. No fatality was reported. Viper bite envenomation is a rare pediatric medical emergency in Italy but may sometimes be severe. A new pediatric severity score may be implemented in the screening of children with viper bites to favor a selective and prompt administration of antivenom.
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Affiliation(s)
- Marco Marano
- Pediatric Intensive Care Unit, Pediatric Clinical Toxicology Center, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.M.); (G.Z.)
| | - Mara Pisani
- Department of Emergency, Acceptance and General Pediatrics, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Giorgio Zampini
- Pediatric Intensive Care Unit, Pediatric Clinical Toxicology Center, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (M.M.); (G.Z.)
| | - Giuseppe Pontrelli
- Clinical Trial Unit, Academic Department of Pediatrics, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Marco Roversi
- Clinical Trial Unit, Academic Department of Pediatrics, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
- Correspondence:
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Jadon RS, Sood R, Bauddh NK, Ray A, Soneja M, Agarwal P, Wig N. Ambispective study of clinical picture, management practices and outcome of snake bite patients at tertiary care centre in Northern India. J Family Med Prim Care 2021; 10:933-940. [PMID: 34041101 PMCID: PMC8138377 DOI: 10.4103/jfmpc.jfmpc_1408_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 11/04/2022] Open
Abstract
Background Snakebite is a common but neglected public health problem of tropical & subtropical regions worldwide. This study was conducted to look into profile, first aid measures, management strategy and outcomes of snake bite patients. Methods This was an ambispective study conducted in the Department of Medicine & Emergency Medicine at AIIMS, New Delhi from June 2011 to May 2017 and enrolled 54 patients. In retrospective part 33 case records of snake bite patients were retrieved and in prospective part 21 patients were recruited. All relevant information including demographic parameters, first aid measures, clinical and laboratory profile and outcomes were recorded in pre made proformas. All data were analysed using IBM Stata version 13 and Microsoft Excel 2011. Results Majority of patients were male, and the mean age was 27.6 years. Maximum numbers of bites 34 (63%) happened in the rainy season and Krait was the most common culprit species. Neurological manifestations were most common (70.4%) followed by haematological. Most common complication was ventilatory failure (78.6%), and median dose of ASV was 20 vials. Forty-nine (90.7%) patients were discharged successfully. There was significant association of sepsis and shock with non survivors of snake bite with respective P values of 0.02 and 0.007. Conclusion Neurotoxic snake bite (70.4%) was the most common type of envenomation. Most common complication was ventilatory failure and majority of patient (90.7%) successfully discharged. Sepsis and shock were significantly associated with non survivors of snake bite.
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Affiliation(s)
- Ranveer Singh Jadon
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rita Sood
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | | | - Animesh Ray
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Praveen Agarwal
- Department of Emergency Medicine All India Institute of Medical Sciences, New Delhi, India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
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Suryanarayana G, Rameshkumar R, Mahadevan S. Retrospective Hospital-Based Cohort Study on Risk Factors of Poor Outcome in Pediatric Snake Envenomation. J Trop Pediatr 2021; 67:6024940. [PMID: 33280039 DOI: 10.1093/tropej/fmaa078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Among Southeast Asian countries, India has reported the highest mortality due to snakebite envenomation. To identify the risk factors of poor outcome (mortality/mechanical ventilation/renal replacement therapy-RRT) in pediatric snakebite envenomation. METHOD Case records of children aged less than 13 years with snakebite envenomation admitted between June 2009 and July 2015 were reviewed retrospectively. Medical records of the patient died within 6 h, those required RRT before administration of antisnake venom (ASV), and those with unknown bites were excluded. RESULTS A total of 308 patients were included. One hundred eighty (58.4%) had hemotoxic, and 128 (41.6%) had neuroparalytic envenomation. Median (interquartile range) bite to ASV time was 3 (2-6) h. Seventy-five (24.4%) patients received ASV within 6 h of bite. Poor outcomes occurred in 128 (41.6%), and 36 (11.7%) patients died. On binary logistic analysis (adjusted odds ratio, 95% confidence interval), age ≤5 years (2.97, 1.28-6.90), walking (6.15, 2.88-13.17), playing (3.36, 1.64-6.88), no tourniquet (2.39, 1.25-4.57), time to ASV more than 6 h (2.71, 1.45-5.06), fang marks (2.22, 1.21-4.07), neurotoxic envenomation (3.01, 1.11-8.13) and additional ASV dose (8.41, 2.99-23.60) were independently predicted the poor outcome (Hosmer and Lemeshow goodness of fit model p = 0.135; overall percentage of the model is 72.2% and R-square = 0.28). CONCLUSION Age below 5 years, activity at/after the bite (playing/walking), no tourniquet, a longer bite to ASV time, presence of fang marks, neurotoxic envenomation and need for additional ASV dose were independent predictors of poor outcome in pediatric snakebite envenomation.
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Affiliation(s)
- Ganapathi Suryanarayana
- Division of Pediatric Critical Care, Department of Pediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605 006, India
| | - Ramachandran Rameshkumar
- Division of Pediatric Critical Care, Department of Pediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605 006, India
| | - Subramanian Mahadevan
- Division of Pediatric Critical Care, Department of Pediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry 605 006, India
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Hooda R, Parameswaran N, Subramanian M. Serious Adverse Reactions to Anti-snake Venom in Children with Snake Envenomation: An Underappreciated Contributor to Snakebite Mortality? Indian J Crit Care Med 2021; 25:720-723. [PMID: 34316156 PMCID: PMC8286419 DOI: 10.5005/jp-journals-10071-23836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Deaths due to snakebites and serious adverse reactions to anti-snake venom (ASV) are both underreported in India. Serious adverse reactions to ASV are common, contributing significantly to mortality and morbidity. We conducted a study to determine the frequency of occurrence of severe adverse reactions to ASV in children and study the various risk factors and their outcomes. Patients and methods We carried out a retrospective record review of all children of snake envenomation admitted in our tertiary care teaching hospital, from January 2013 to December 2016. Children aged 0 to 12 years admitted for snake envenomation and who received ASV as part of their treatment were included. Details about their management, including ASV usage and any adverse effects noted, were collected on a standard data collection form. Results Sixty-eight children were enrolled. Hemotoxic (52.9%) envenomation was more common than neurotoxic (35.2%). Severe adverse reactions were present in 42.6%, hypotension in 38.2%, and bronchospasm in 4.4% of the children. The overall mortality rate was 16.1%, anaphylaxis to ASV contributing to 36.3% of them. Mortality was significantly higher in cases with severe adverse reactions (p = 0.005). ASV reactions were also significantly different with different manufacturers. Conclusions There is a high frequency of occurrence of severe adverse reactions to ASV resulting in significant morbidity and mortality. How to cite this article Hooda R, Parameswaran N, Subramanian M. Serious Adverse Reactions to Anti-snake Venom in Children with Snake Envenomation: An Underappreciated Contributor to Snakebite Mortality? Indian J Crit Care Med 2021;25(6):720-723.
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Affiliation(s)
- Rashmi Hooda
- Department of Pediatrics, JIPMER, Puducherry, India
| | | | - Mahadevan Subramanian
- Department of Pediatrics Sri Venkateshwaraa Medical College Hospital and Research Centre, Puducherry, India
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Variawa S, Buitendag J, Marais R, Wood D, Oosthuizen G. Prospective review of cytotoxic snakebite envenomation in a paediatric population. Toxicon 2020; 190:73-78. [PMID: 33340504 DOI: 10.1016/j.toxicon.2020.12.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/19/2020] [Accepted: 12/13/2020] [Indexed: 10/22/2022]
Abstract
Cytotoxic snakebite envenomation is prevalent in Kwazulu-Natal and may be associated with significant physical disability. The aim of this study was to provide an overview of the effects of cytotoxic envenomation in children. The patient population were all patients attending the Emergency Department at Ngwelezana Tertiary Hospital with snakebite from December 2014 to March 2015. All children 13 years or younger presenting with painful progressive swelling (PPS) following snakebite were included in this study. They were further classified according to severity: mild, moderate and severe. Patient demographic and clinical data was collected prospectively. Fifty-one children were included in this study. Nine were classified as mild, 24 as moderate and 18 as severe. The median time of presentation after bite was 6 h in the mild group, 7 h in the moderate group and 12 h in the severe group. There was a positive correlation between increasing severity and INR (p=< .00001) and no correlation between WCC (p = .175) or renal function and severity (p = .963). A total of 11 children (22%) developed an acute kidney injury (AKI). A total of 23/51 patients received antivenom; 25% of patients with moderate cytotoxicity and 94% of patients with severe cytotoxicity. Thirteen percent developed allergic reactions (3/23) and 57% (13/23) anaphylaxis. A total of 15 patients underwent one or more procedures on their affected limbs. There was one recorded mortality during this period, related to severe anaphylaxis following antivenom administration. Access to healthcare for antivenom administration is often delayed and ongoing education within affected areas is advised. Whilst majority of snakebite victims can be adequately managed with basic supportive measures, early identification of severe envenomation is crucial to enable timeous antivenom administration and prevention of further complications such as compartment syndrome and loss of limb. Hypersensitivity reactions are alarmingly common following antivenom administration in children and strict protocols should be followed when administering antivenom.
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Affiliation(s)
- Saffiya Variawa
- Department of Surgery, Khayelitsha District Hospital, Stellenbosch University, Western Cape, South Africa.
| | - Johan Buitendag
- Department of Surgery, Tygerberg Hospital, Stellenbosch University, Western Cape, South Africa
| | - Ruzaan Marais
- Department of Surgery, Khayelitsha District Hospital, Stellenbosch University, Western Cape, South Africa
| | - Darryl Wood
- Department of Emergency Medicine, Queens Hospital BHRUT, Queen Mary University London, United Kingdom
| | - George Oosthuizen
- Department of Surgery, Ngwelezana Hospital, University of KwaZulu-Natal, Kwa Zulu-Natal, South Africa
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Abstract
Because of the lack of early recognition and referral, the incidence of pediatric acute kidney injury (AKI) in Asia still is underestimated. Although each diagnostic criteria has its own merits, the Kidney Disease Improving Global Outcomes classification now is widely accepted. In Asia, the spectrum of pediatric AKI is wide-ranging, from pediatric AKI in highly sophisticated tertiary-care pediatric intensive care units in resource-rich regions due to advanced procedures such as transplantation, cardiac surgery, and other hospital-acquired causes, to primary care preventable causes, such as infectious diseases, snakebite, and so forth in rural parts of the developing world. The development and application of novel biomarkers, concepts such as the Renal Angina Index and advanced renal replacement therapy have revolutionized the era of treating AKI, but the cost and feasibility are the key determinants, especially in rural areas. In view of availability and expenses, peritoneal dialysis should be the first choice in less-developed areas, however, because of various barriers, it still needs more effort. Effective educational steps to both medical carers and families are needed urgently.
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Affiliation(s)
- Ruochen Che
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Mohammed Mazheruddin Quadri
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Aihua Zhang
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China; Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China.
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Suraweera W, Warrell D, Whitaker R, Menon G, Rodrigues R, Fu SH, Begum R, Sati P, Piyasena K, Bhatia M, Brown P, Jha P. Trends in snakebite deaths in India from 2000 to 2019 in a nationally representative mortality study. eLife 2020; 9:e54076. [PMID: 32633232 PMCID: PMC7340498 DOI: 10.7554/elife.54076] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 06/04/2020] [Indexed: 12/03/2022] Open
Abstract
The World Health Organization call to halve global snakebite deaths by 2030 will require substantial progress in India. We analyzed 2833 snakebite deaths from 611,483 verbal autopsies in the nationally representative Indian Million Death Study from 2001 to 2014, and conducted a systematic literature review from 2000 to 2019 covering 87,590 snakebites. We estimate that India had 1.2 million snakebite deaths (average 58,000/year) from 2000 to 2019. Nearly half occurred at ages 30-69 years and over a quarter in children < 15 years. Most occurred at home in the rural areas. About 70% occurred in eight higher burden states and half during the rainy season and at low altitude. The risk of an Indian dying from snakebite before age 70 is about 1 in 250, but notably higher in some areas. More crudely, we estimate 1.11-1.77 million bites in 2015, of which 70% showed symptoms of envenomation. Prevention and treatment strategies might substantially reduce snakebite mortality in India.
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Affiliation(s)
- Wilson Suraweera
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - David Warrell
- Nuffield Department of Clinical Medicine, University of OxfordOxfordUnited Kingdom
| | - Romulus Whitaker
- Centre for Herpetology/Madras Crocodile Bank, Vadanemmeli VillageChennaiIndia
| | - Geetha Menon
- Indian Council of Medical Research, Ansari NagarNew DelhiIndia
| | - Rashmi Rodrigues
- Department of Community Health, St. John's Medical College, St. John's National Academy of Health SciencesBangaloreIndia
| | - Sze Hang Fu
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - Rehana Begum
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - Prabha Sati
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - Kapila Piyasena
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - Mehak Bhatia
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
| | - Patrick Brown
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
- Department of Statistical Sciences, University of TorontoTorontoCanada
| | - Prabhat Jha
- Centre for Global Health Research, Unity Health Toronto, and Dalla Lana School of Public Health, University of TorontoOntarioCanada
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Priyamvada PS, Jaswanth C, Zachariah B, Haridasan S, Parameswaran S, Swaminathan RP. Prognosis and long-term outcomes of acute kidney injury due to snake envenomation. Clin Kidney J 2019; 13:564-570. [PMID: 32905257 PMCID: PMC7467597 DOI: 10.1093/ckj/sfz055] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 04/09/2019] [Indexed: 12/28/2022] Open
Abstract
Background Snakebite is a common occupational hazard in tropical countries. To date, the literature on snakebite-related acute kidney injury (AKI) has been limited by retrospective study designs, lack of uniformity in case definitions of AKI and limited follow-up. This study aims to identify the in-hospital outcomes and long-term changes in kidney function that follow haemotoxic envenomation. Methods All adult patients admitted with AKI following haemotoxic envenomation from January 2016 to June 2017 were recruited and followed up until July 2018. Predictors of in-hospital mortality was assessed. Long-term follow-up data on kidney function were collected from survivors. Results In total, 184 patients with haemotoxic envenomation and AKI were recruited. The mean age of the subjects was 42.2 years [95% confidence interval (CI) 40.3–44.7]. The majority were male (71.2%). The mortality of patients with haemotoxic envenomation was 21.5%. The mortality was considerably higher in patients with Kidney Disease: Improving Global Outcomes (KDIGO) Stage 3 AKI [relative risk (RR) 4.45 (95% CI 1.14–17.42)] and those who met KDIGO urine output criteria [RR 20.45 (95% CI 2.84–147.23)]. A Cox regression model identified mechanical ventilation [odds ratio (OR) 5.59 (95% CI 2.90–10.81)], hypotension [OR 2.48 (95% CI 1.31–4.72)] and capillary leak syndrome [OR 2.02 (95% CI 1.05–3.88)] as independent predictors of mortality. Long-term follow-up data were available for 73 patients. A total of 21 patients (28.7%) developed adverse renal outcomes (glomerular filtration rate <60 mL/min/1.73 m2, urine albumin excretion >30 mg/g and new-onset hypertension or prehypertension). Conclusions AKI resulting from snake envenomation is associated with considerable risk of mortality. The greater the AKI stage the greater the likelihood of mortality. One-third of patients with AKI developed long-term complications like chronic kidney disease, prehypertension and hypertension over the follow-up period.
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Affiliation(s)
- P S Priyamvada
- Department of Nephrology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry 605006, India
| | - Challa Jaswanth
- Department of Nephrology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry 605006, India
| | - Bobby Zachariah
- Department of Biochemistry, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry 605006, India
| | - Satish Haridasan
- Department of Nephrology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry 605006, India
| | - Sreejith Parameswaran
- Department of Nephrology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry 605006, India
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Rucavado A, Escalante T, Camacho E, Gutiérrez JM, Fox JW. Systemic vascular leakage induced in mice by Russell's viper venom from Pakistan. Sci Rep 2018; 8:16088. [PMID: 30382131 PMCID: PMC6208380 DOI: 10.1038/s41598-018-34363-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/08/2018] [Indexed: 02/06/2023] Open
Abstract
Envenomings by some populations of the Russell's viper (Daboia russelii) are characterized by a systemic capillary leak syndrome (CLS) which causes hemoconcentration, and is associated with the severity of envenoming. We adapted a model of CLS in mice by assessing hemoconcentration. The venom of D. russelii from Pakistan, but not that of another viperid, Bothrops asper, induced hemoconcentration and an increment in vascular permeability, being devoid of hemorrhagic activity at the doses tested. These findings reveal a dichotomous pattern of vasculotoxicity in viperid snake venoms. This difference might depend on variations in venom composition, especially regarding metalloproteinases (SVMPs), which are low in Pakistani D. russelii and high in B. asper. Inhibition of SVMPs and phospholipases A2 in D. russelii venom did not abrogate hemoconcentration. An hemoconcentration-inducing fraction was obtained by chromatography, which contains vascular endothelial growth factor (VEGF), a known potent inducer of increment in vascular permeability. Exudates collected from tissue injected with venom also induced hemoconcentration, and the effect was inhibited by antivenom. However, the amount of venom in exudate required to induce the effect is low, as compared with venom dissolved in saline solution, hence suggesting that endogenous proteins present in the exudate, probably inflammatory mediators, potentiate the effect.
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Affiliation(s)
- Alexandra Rucavado
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica.
| | - Teresa Escalante
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Erika Camacho
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - José María Gutiérrez
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Jay W Fox
- School of Medicine, University of Virginia, Charlottesville, VA, 22959, USA.
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